Compressed auido or not ?

[bwa]

Have created SVCD for a couple of years now, and has my first DVD burner (HP 200i), what a superb quality !!!!

My Q is about the audio on the DVD I make from my DV-camera. The clips are captured by Studio 7 and encoded by TMPGEnc 2.54 and authored by ULead DVD Workbench. At this site I was reading about uncompressed audio and was wondering about the audio in the MPEG2 file. The setting in TMPGEnc is stereo 384 kbit/s, is this optimal for ordinary home videos from my DV-camera?

My bitsize is set to approx. 6 MBit 2 pass VBR (max=8500, min = 3500) to get highest quality and a good klength in one DVD.

Is my audio uncompressed or not ? I am really not shure about this.

If is compressed with TMPGEnc what is teh suggested bit rate, when teh audio is just voices, not music ?

Bjørn-Willy Arntzen, Norway

[bugster]

Assuming you are using TmpGenc to produce a single mpeg combined video/audio stream then the audio is compressed using Mpeg1 Layer II compression. If you think this is causeing you to lose quality there are several things you can try.

First, use toolame as the the audio compressor within TmpGenc.

Secondly, extract the audio from your avi using virtualdub into an uncompressed wav file. Supply this as the audio track to you authoring program, let TmpGenc generate video only.

Third, make sure your audio is 48Khz because if not it will be converted and this is likeley to be a source of quality loss.

I am not familiar with Ulead DVD workbench and its capabilities so I cant tell you which of the DVD audio formats it supports. It should support PCM (uncompressed) audio (but you may have to change an option somewhere to enable this) and mp2. Try the different methods on short clips to see which you prefer.

P.S. look to the guides section for explanations of the methods I have mentioned.

[bwa]

Tanks for your answer. I needed to know that the audio IS compressed, and actually don't have any trouble with the quality at 384 kbit/s.

I would gues that lowering the audio bitrate to 256 kbit/s would be good enough if the sound is only voices ?